6. Chris Brown and Sid Owen (aka Ricky from EastEnders)

7. Jay Z and Tara Reid

Taken back in 2000, who knew that Jay Z and American Pie actress Tara Reid use to hang out? Picture: Getty

8. Dr Dre and Richard Branson

It seems slightly random that Dr Dre and Richard Branson might be friends, but then again, now that Dre's in the billionairres club maybe he'll get an invite to Necker Island? Picture: Getty

9. Drake and Ellen Pompeo

This photo of Drizzy and Ellen Pompeo, best known for playing Meredith Grey in hit TV show Grey's Anatomy, cuddling up at a basketball game was only taken last year. But how on earth did their paths cross to become friends?

10. 50 Cent and Jason Statham

50 Cent has got one the widest friendship groups ever. This was just another day hanging out with Jason Statham.

11. 50 Cent and Meryl Streep

A 39-year-old rapper and a 65-year-old actress, who would have thought they sat court-side together? Picture: Instagram

12. 50 Cent and Tom Hanks

Basically - if 50 Cent sees a famous person, he runs to get a photo with them. Picture: Instagram

13. Beyoncé and Gwyneth Paltrow

Beyonce and Gwyneth Paltrow might seem like unlikely best friends, but they are seriously close. They became friends after meeting at a benefit in New York years ago. "They're the greatest people. They are funny and sweet and self-aware and really intelligent," Gwyneth said of Bey and Jay.

14. Kanye West and Taylor Swift

We all know that Kanye and Taylor have not always been BFFs. In fact, they were sworn enemies for years after he interrupted her whilst collecting her award at the MTV VMAs in 2009. But 2015 was the year the pair finally made up and apparently, even got in the studio together. Picture: Getty

15. Will.i.am and Prince Charles

Will.i.am once hosted a reception for the Prince's Trust Job Ambassadors, so obviously the Prince himself had to have a chat.

16. Jason Derulo and Elton John

"Crazy 2 hang out with the Legend @EltonJohndotcom on the eve of me releasing #Tattoos," Jason Derulo said after hanging with Elton. Picture: Instagram

17. Tinchy Stryder and The Chuckle Brothers

Some people ask their family members or friends to appear in their music videos, but not Tinchy. He asked his good friends The Chuckle Brothers!